I have moved up to the unlimited class and rules state I can run any size single turbo I want. So what is the biggest single I can spool with my 3rd gen truck? I am thinking go big for pulling, tow it to the pulls and then after the season is over put the Silver bullet back on for street duty.

 

alot of guys are starting to go with the S400 because they reasonably priced and seem to handle the fuel and most of the other guys run an aurora5000 or a big set of twins like off constantly or one of them

 

rules state a unlimited single or small twins?? go figure and I think a stock a5 is not that much bigger than my silver bullet

 

The S400 would be a good start. A bunch of the guys in that class are running those chargers and having good luck. Of course it would have to be a large wheel in the S400.

If you had twin pumps, fueling to 6k, and something like a flux 6 inj. you may be able to run an HC5= 100+mm like Ladell and Lamar. But that be crazyness